/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    /* Colors - Coastal/Ocean Theme */
    --color-primary: #0891b2;          /* Cyan-600 - Ocean blue */
    --color-primary-dark: #0e7490;     /* Cyan-700 - Deep ocean */
    --color-primary-light: #06b6d4;    /* Cyan-500 - Light ocean */
    --color-accent: #f59e0b;           /* Amber-500 - Sandy accent */

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Dark mode elements */
    --color-dark-bg: #1a1a1a;
    --color-dark-border: #333333;
    --color-dark-text: #999999;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-md: 16px;
    --font-size-lg: 20px;
    --font-size-xl: 22px;
    --font-size-2xl: 24px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 2px 0 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 2px 0 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.2s;
    --transition-base: 0.3s;
    --transition-slow: 0.6s;

    /* Layout */
    --sidebar-width: 320px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    overflow: hidden;
}

#app {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    overflow-y: auto;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform var(--transition-base) ease;
}

.sidebar.collapsed {
    transform: translateX(calc(-1 * var(--sidebar-width)));
}

/* Sidebar Collapse Button */
.sidebar-collapse-btn {
    position: absolute;
    top: 50%;
    right: -40px;
    transform: translateY(-50%);
    width: 32px;
    height: 64px;
    background: var(--color-white);
    border: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 1001;
    padding: 0;
}

.sidebar-collapse-btn:hover {
    background: var(--color-gray-100);
    transform: translateY(-50%);
}

.collapse-icon {
    font-size: var(--font-size-md);
    color: var(--color-gray-500);
    transition: transform var(--transition-base) ease;
}

.sidebar.collapsed .collapse-icon {
    transform: rotate(180deg);
}

/* Tab Switcher */
.tab-switcher {
    display: flex;
    border-bottom: 1px solid var(--color-gray-200);
    background: var(--color-gray-50);
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tab-btn:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-800);
    transform: translateY(-1px);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

.tab-icon {
    font-size: 20px;
    line-height: 1;
}

.tab-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.tab-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
}

.tab-desc {
    font-size: var(--font-size-xs);
    opacity: 0.7;
    line-height: 1.2;
}

.tab-btn.active .tab-desc {
    opacity: 0.9;
}

/* Tab Content */
.tab-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow-y: auto;
    animation: fadeIn var(--transition-base) ease-in;
}

.tab-content.hidden {
    display: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sidebar-header {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.sidebar-header h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.sidebar-header .subtitle {
    font-size: var(--font-size-base);
    opacity: 0.9;
}

.sidebar-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.sidebar-section h2 {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-700);
}

/* Collapsible sections */
.sidebar-section.collapsible {
    padding: 0;
}

.sidebar-section.collapsible summary {
    padding: var(--spacing-lg);
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.sidebar-section.collapsible summary::-webkit-details-marker {
    display: none;
}

.sidebar-section.collapsible summary h2 {
    margin: 0;
    display: inline-flex;
    align-items: center;
}

.sidebar-section.collapsible summary h2::before {
    content: '▶';
    display: inline-block;
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-sm);
    transition: transform var(--transition-fast);
}

.sidebar-section.collapsible[open] summary h2::before {
    transform: rotate(90deg);
}

.sidebar-section.collapsible summary:hover {
    background: var(--color-gray-50);
}

.sidebar-section.collapsible[open] summary {
    border-bottom: 1px solid var(--color-gray-200);
}

.sidebar-section.collapsible #category-filters {
    padding: var(--spacing-lg);
    padding-top: 15px;
}

.sidebar-section.collapsible #overlay-layers-content {
    padding: var(--spacing-lg);
    padding-top: 15px;
}

/* Shared content class for all collapsible sections */
.collapsible-section-content {
    padding: var(--spacing-xl);
    padding-top: var(--spacing-lg);
}

/* Transit Presets */
.transit-presets {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.preset-btn {
    flex: 1;
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: var(--font-weight-medium);
}

.preset-btn:hover {
    background: var(--color-gray-200);
}

.preset-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.sidebar-footer {
    padding: var(--spacing-lg);
    margin-top: auto;
}

/* Category Filters */
.category-container {
    margin-bottom: 12px;
}

.category-header {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: 8px;
    transition: background 0.2s;
}

.category-header:hover {
    background: #f3f4f6;
}

.category-header input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
}

.category-header-content {
    display: flex;
    align-items: center;
    flex: 1;
    cursor: pointer;
    font-size: 14px;
}

.filter-icon {
    width: 24px;
    height: 24px;
    margin-right: 10px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.category-name {
    font-weight: 500;
}

.poi-count {
    margin-left: auto;
    margin-right: 8px;
    color: #9ca3af;
    font-size: 12px;
}

.expand-icon {
    color: #9ca3af;
    font-size: 10px;
    transition: transform 0.2s;
    flex-shrink: 0;
}

/* Location List */
.location-list {
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-left: 30px;
    margin-top: 4px;
}

.location-list.collapsed {
    max-height: 0;
}

.location-item {
    padding: 8px 12px;
    margin: 4px 0;
    font-size: 13px;
    color: #6b7280;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
}

.location-item:hover {
    background: #f3f4f6;
    color: #374151;
    padding-left: 16px;
}

/* Buttons */
button {
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.4);
}

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
}

/* Cesium Container */
#cesiumContainer {
    flex: 1;
    position: relative;
}

/* Mode Indicator */
.mode-indicator {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 10px 16px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 100;
    transition: all var(--transition-fast);
}

.mode-indicator:hover {
    background: rgba(255, 255, 255, 1);
    box-shadow: var(--shadow-lg);
}

.mode-icon {
    font-size: 18px;
    line-height: 1;
}

.mode-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    white-space: nowrap;
}

/* Info Panel - Inline in Explore Tab */
#info-panel {
    margin: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all var(--transition-base) ease;
}

#info-panel.hidden {
    display: none;
}

.close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    padding: 0;
    background: #f3f4f6;
    color: #6b7280;
    border-radius: 50%;
    font-size: 20px;
    line-height: 1;
}

.close-btn:hover {
    background: #e5e7eb;
}

#info-content {
    padding: 20px;
}

#info-content h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: #111827;
}

#info-content .category-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
}

#info-content p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 8px;
    font-size: 14px;
}

#info-content .address {
    color: #374151;
    font-weight: 500;
}

#info-content .tags {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

#info-content .tag {
    padding: 4px 10px;
    background: #f3f4f6;
    border-radius: 8px;
    font-size: 12px;
    color: #6b7280;
}

/* Property Sidebar Controls */
.property-controls {
    padding: 12px 0;
}

.parcel-hint {
    font-size: 12px;
    color: #6b7280;
    margin: 8px 0 0 0;
    font-style: italic;
}

.toggle-switch {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 12px;
}

.toggle-switch input[type="checkbox"] {
    width: 48px;
    height: 24px;
    position: relative;
    appearance: none;
    background: #d1d5db;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.3s;
}

.toggle-switch input[type="checkbox"]:checked {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.toggle-switch input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input[type="checkbox"]:checked::before {
    transform: translateX(24px);
}

.toggle-label {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
}

.property-settings {
    padding: 12px 0;
}

.property-settings label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
}

.property-settings input[type="range"] {
    width: 100%;
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
    margin-bottom: 8px;
}

.property-settings input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.property-settings input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border: none;
}

#opacity-value {
    display: inline-block;
    font-size: 13px;
    color: #6b7280;
    font-weight: 500;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    #app {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        max-height: 40vh;
        border-bottom: 2px solid #e5e7eb;
    }

    .sidebar.collapsed {
        transform: translateY(-100%);
    }

    .sidebar-collapse-btn {
        right: 20px;
        top: auto;
        bottom: -40px;
        transform: rotate(90deg);
    }

    #mode-toggle {
        top: 10px;
        right: 10px;
    }

    #cesiumContainer {
        height: 60vh;
    }
}

/* Loading State */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-gray-100);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin var(--transition-slow) linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Tour Panel */
#tour-panel {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 380px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    z-index: 1002;
    transition: transform var(--transition-base) ease, opacity var(--transition-base) ease;
}

#tour-panel.hidden {
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
}

#tour-content {
    padding: 20px;
}

.tour-stop {
    color: white;
}

.tour-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.tour-icon {
    font-size: 36px;
    line-height: 1;
}

.tour-stop h3 {
    font-size: 22px;
    margin: 0;
    color: white;
    font-weight: 600;
}

.tour-description {
    font-size: 14px;
    line-height: 1.5;
    margin: 0 0 16px 0;
    color: rgba(255, 255, 255, 0.95);
}

.tour-progress {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: white;
    border-radius: 4px;
    transition: width 0.6s ease;
}

.progress-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

/* Tour Controls */
.tour-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tour-controls button {
    width: 100%;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.4);
}

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-gray-200);
}

.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    #tour-panel {
        top: 10px;
        right: 10px;
        left: 10px;
        width: auto;
    }
}

/* Notification Toast */
.notification-toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    min-width: 300px;
    max-width: 400px;
    background: var(--color-white);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transition: transform var(--transition-base) ease, opacity var(--transition-base) ease;
}

.notification-toast.hidden {
    transform: translateX(450px);
    opacity: 0;
    pointer-events: none;
}

.notification-toast.warning {
    border-left-color: var(--color-accent);
}

.notification-toast.error {
    border-left-color: #ef4444; /* Red-500 */
}

.notification-toast.success {
    border-left-color: #10b981; /* Green-500 */
}

.notification-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.notification-icon {
    font-size: var(--font-size-lg);
    line-height: 1;
    flex-shrink: 0;
}

.notification-message {
    font-size: var(--font-size-base);
    color: var(--color-gray-700);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .notification-toast {
        bottom: 10px;
        right: 10px;
        left: 10px;
        min-width: auto;
    }
}

/* ============================================
   Top Property Owners Styling
   ============================================ */

.view-toggle {
    display: flex;
    gap: var(--spacing-xs);
    margin: var(--spacing-md) 0;
}

.view-btn {
    flex: 1;
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: var(--font-weight-medium);
}

.view-btn:hover {
    background: var(--color-gray-200);
}

.view-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.owner-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    margin-bottom: 8px;
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.owner-item:hover {
    background: var(--color-gray-100);
    border-color: var(--color-primary);
    transform: translateX(2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.owner-rank {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 35px;
    text-align: center;
}

.owner-details {
    flex: 1;
    min-width: 0;
}

.owner-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-800);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.owner-stats {
    display: flex;
    gap: 10px;
    font-size: 11px;
}

.primary-stat {
    color: var(--color-primary-dark);
    font-weight: 600;
}

.secondary-stat {
    color: var(--color-gray-600);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-label {
    font-size: 12px;
    color: var(--color-gray-600);
}

.stat-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gray-800);
}